Finding the Third Proportional to 113,396.50 and 248,339

Step by Step Solution

1. Step 1: Write the proportion equation
   113,396.50 : 248,339 = 248,339 : x
2. Step 2: Convert to fraction form
   113,396.50/248,339 = 248,339/x
3. Step 3: Cross multiply
   113,396.50x = 248,339 × 248,339
4. Step 4: Simplify right side
   113,396.50x = 61,672,258,921
5. Step 5: Solve for x
   x = 61,672,258,921/113,396.50
6. Step 6: Final answer
   x = 543,863.87